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Am I too small for this motorcycle? Duke – Sun May 14 17:38:31 2000 I’m only about 5’2″ and don’t have a problem, even though I can only touch the ground with the ends of my toes. Once you get a feel for the balance of the bike it’s not hard to keep everything upright. Only place I have trouble is pushing the bike backwards in a parking lot. Usually I just walk the bike (beside it) to where I can get on and get going. How does the EX500 compare to the EX250? Craig M. – Mon May 22 10:23:29 2000 I have both the EX250 and the EX500; both are Y2K models. The 250 is a screamer that performs well and can easily get me into trouble. My only complaints about the 250 are the excessive nose dive when getting on the front brake hard and the skittishness of the rear during high speed cornering. Both are easily corrected with suspension adjustments, I’ve just been too lazy to get the parts and do the work. A bit more wind protection would be great too. The 500 addresses these problems, the diving of the front end (to a degree); the rear’s skittishness and the wind protection. A plus for the 500 is the greater torque and power off the line; it pulls stronger (in my opinion) and will get you into illegal speed territory just a bit quicker than the 250. With greater weight, is has more stability in high speed and windy situations. Insurance is just about the same for both, with the 250 getting the nod for gas mileage. Service requirements are almost identical for both as well, being that they’re both parallel twins, the technology is the virtually the same. The downfalls of the 500: $2K more than the 250 (can do a lot to the 250 with that kind of money); buzzy mirrors, barely useful; heavier weight to have to push around the garage; lesser gas mileage (55-60 MPG; 250 pushes 70 MPG easily); engine is worse than a nervous dog shaking around at idle and at speed (here the 250 is far superior and much smoother). In my opinion, the 500 is a better suited for a larger rider, from a comfort standpoint. I feel I can stretch out a bit more on it than the 250 (I’m 5′ 9″, 160 lbs). The 250′s brakes are better tuned than the 500 and the shifter is much smoother. That may be due to the 3,500 mile difference between the two bikes. Bottom line, both bikes are great, the 250 is now my wife’s ride (mainly) and the 500′s mine (unless she steals the keys away). In time, I’ll make the adjustments to the 250; she doesn’t push it like I do.

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Hot start lever (250 SX-F) If you pull the red hot start lever [1] during the starting procedure backward, a bore in the carburetor will be opened through which the engine may take in additional air. The result is a „lean” fuel-air mixture of the type needed for hot starts.
ENGLISH 7 OPERATION INSTRUMENTS » Headlamp switch (EXCUSA) In this model the headlamp is switched on with the pull switch [1] . Flasher switch The flasher switch is a separate unit and is mounted on the left portion of the handlebar. The wire harness is designed in a way that whenever you want to use your bike off-road, you can dismount the entire turn indicator system without affecting the function of the remaining electrical system. Flasher left Flasher right Starter button (EXC) Pushing the black starter button [2] will actuate the E-starter. Emergency OFF switch (EXC Australia) The red emergency-OFF switch [3] is arranged adjacent to the throttle grip. In this position, the E-starter is operational and the engine can be started. In this position, the E-starter and ignition circuits are interrupted.The E-starter cannot be actuated, and the engine will not start, not even if you attempt to start it with the kickstarter. Pushing the black starter button [4] will actuate the E-starter. 2 3 4 5 6 Indicator lamps The green control lamp [5] flashes in the same rhythm as the flashing indicator when the indicator is working. The blue control lamp [6] lights up when the high beam is on

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Hand brake lever The hand brake lever [1] is mounted on the handlebars on the right and actuates the front wheel brake. The adjusting screw [A] can be used to change the basic position of the hand brake lever (see “Maintenance”). 1 A Short circuit button The short circuit button [2] turns off the engine. When pressing this button, the ignition circuit is short-circuited. 2 Headlamp switch (XCF-W) In this model the headlamp is switched on with the pull switch [5] . 5 Flasher switch The flasher switch is a separate unit and is mounted on the left portion of the handlebar. The wire harness is designed in a way that whenever you want to use your bike off-road, you can dismount the entire turn indicator system without affecting the function of the remaining electrical system. Flasher left Flasher right
OPERATION INSTRUMENTS » ENGLISH 7 1 2 3 4 5 Starter button Pushing the red starter button [1] will actuate the E-starter. Emergency OFF switch (EXC-F Australia) The red emergency-OFF switch [2] is arranged adjacent to the throttle grip. In this position, the E-starter is operational and the engine can be started. In this position, the E-starter and ignition circuits are interrupted.The E-starter cannot be actuated, and the engine will not start, not even if you attempt to start it with the kickstarter. Pushing the black starter button [3] will actuate the E-starter. Indicator lamps The green control lamp [4] flashes in the same rhythm as the flashing indicator when the indicator is working. The blue control lamp [5] lights up when the high beam is on. TEST All of the display segments briefly light up for the display function test. Electronic speedometer The display in the electronic speedometer is activated as soon as you press a button on the speedometer or an impulse is received from the wheel sensor. The display lights up when the engine is running. The display is cleared if no button is pressed for 1 minute or no impulse is received from the wheel sensor. The button is used to change between display modes. The + and – buttons are used to control various functions

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Start by loosening the rear cylinder down tube bolt located on the top of the old mufflers center collector in front of the rear tire. 2. Remove both of the front cylinder exhaust pipe head nuts and set them to the side for reuse with the MAC exhaust system. 3. Remove the right side passenger’s foot peg. Set the foot peg aside as you will need to reinstall it. 4. Remove the left side passenger’s foot peg. Set this foot peg aside as it will also need to be reinstalled. Note: When you remove this bolt the entire exhaust system will be loose and may fall. You will need to support the old exhaust at this point to keep from injuring yourself. Gently move the old exhaust system side to side to remove it from the rear cylinder down tube. Once the exhaust system is loose from the down tube remove the system from under the Virago. 5. Remove the bolt holding the rear brake pedal in place and remove the brake pedal from the motorcycle. Note: Set both the bolt and the pedal aside for reinstallation. 6. Next loosen the nut on the drivers right foot peg, 1 full turn to start with. Then remove the rear nut on the same foot peg. (Note: The bolt that this nut is on goes completely through the motorcycle. This is the center stand mounting bolt.) Now remove the front nut and set both aside for reuse with the MAC system. 7. Install the center stand stop bracket under the left passenger foot peg. Install this bracket with the 90° bend facing down and towards the rear tire. (Note: Center stand sop bracket in provided in the hardware kit and is approx. 5″ long with a 90° bend in it.) Adjust the bracket by one of the large bolts through the foot peg then through the bracket and then install it into the stock location. Put on one of the washers and a nut and snug up the nut. Lower the center stand until the center stand come in to contact with the bottom of the bracket. Tighten the nut until it will hold the bracket securely. 8. Install the rear down tube clamp onto the rear muffler and install the medium sized nut/bolt/washer onto the clamp just finger tight. 9. Install the (2) small bolts into the channel bracket on the rear muffler. Install the rear mounting bracket onto the two bolts and then install the washers and nuts onto each. Tighten the (2) nuts only slight amount so that you can slide the bracket front to rear to insure that when you install the bracket you position it properly. 10. Slide the rear pipe onto the rear down tube about ¼”to ¾” past the pre-cut slots on the rear muffler pipe. Slightly snug the clamp making sure that the position of the bolt and nut will not interfere with any moving parts. The final position of this bolt can hit the tire if it is not positioned properly. 11. Install the other large bolt into the right passenger and then through the top hole in the rear muffler mounting bracket. Insert the bolt into the stock location and install the washer and the nut. 12. Align the rear muffler and you can then tighten the nuts on the rear muffler mounting bracket, the cylinder down tube and the right side passenger foot peg.
13. Install the front muffler on the rear most mounting bolt of the drivers foot peg and put the stock nut back onto the bolt. Hand tighten the bolt only at this time. Note: Install the nut at this time is only to support the muffler and to insure that the pipe does not fall on the ground while you complete the next step. 14. Lift the front head pipe into position and start the stock nuts onto the studs. It is strongly recommended that you install new exhaust gasket at this time. Note: The new exhaust gaskets are not included in the kit but are available at your local Yamaha Dealer. After gaskets are installed hand tighten the front head pipe. 15. Remove the nut from the drivers foot peg bolt and reinstall the drivers foot peg. Note: Hand tighten only at this time. 16. Finish tightening the nuts on the front head pipes. (Install these nuts according to Yamaha’s Factory specifications.) Once the nuts are tightened on the head pipe you can then tighten the drivers foot peg nuts. 17. Reinstall the rear brake pedal and tighten the bolt that holds it on to factory specifications. 18. Check all of the bolts that you have installed of removed to insure that they are tight. 19. Start the motorcycle and check for any leaks. 20. You are finished with your new MAC Exhaust System.

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1. Make sure the ignition timing is correct 2. Adjust the valves as necessary to ensure proper operation 3. Run the engine to warm it up a bit 4. Adjust the float setting. To do this, remove the carburetors (leave the throttle cables attached), remove the bowl and turn the carburetor upside down (fuel will spill). The float should look like this: Adjust as necessary by bending the float support (#37 in Figure 1). Reinstall Installation and idle adjustment 1. First you must adjust the idle. It is acceptable per the manual to adjust the idle by using the idle adjust screws (11). This usually involves screwing them then backing out 1 to 1.5 turns. Or you can adjust looking at the sliders 2. If installing the carburetors: a. Remove the cover (2) b. Reomve the slider (3) c. Place the throttle cable through the guide (18) with the spring (4) on the cable. d. Route the cable through the slide catch (6) e. Insert the slide assembly into the chamber and make sure it easily slides up and down. Direct the needle (8) into the opening of the diffuser (angled side visible). f. Screw assembly together and verify via throttle movement that slide moves freely. Attach fuel delivery lines to (12). 3. Using the idle set screw (11) raise the slider so the lower edge is 1-2 mm. 4. Assemble to engine using the proper gaskets (paper – felt – paper). 5. Using the locknut (26) adjust the free play of the throttle cable (2-3 mm) 6. Adjust the idle mixture screw – turn in completely then out 1 to 1.5 turns. * Starting using the K68′s (cold weather) 1. Verify fuel flow. Apply choke (pull 52 in Fig1). 2. Using the ticklers (13) allow fuel to enter the bowl until fuel drains from (14) 3. With the ignition off, kick 1 or 2 times 4. Turn ignition on, and as soon as engine is warmed up (maybe sooner) push choke mechanisms to open choke Idle Adjustment (engine running and warm) 1. Remove one of the spark plug caps, and with the cap shorted, adjust (11) to decrease RPM’s to a point of being minimally steady. 2. Adjust the mixture (15) out until RPM’s decrease. Turn in until RPM’s increase slightly. Then turn in screws ¼ to 1/3 revoultion. 3. Do the same for the second carburetor with the first spark plug cap shorted. 4. With both cylinders, adjust each idle (11) on each carburetor the same amount each until it’s at a steady, minimal RPM. Use small changes. (at this point you can use your airflow tool to check). 5. Sharply increase, then decrease throttle. Then engine must return to low RPMs smoothly. If the engine goes below limits, readjust (11) from step 4. Synchronization of the K68 Note: Rather than using the opposite cylinder shorted to test the pull of the live cylinder carburetor, you can use something like a Twinmax connected to the test ports (27 Fig 1). Or, if you have a model without these ports, use a Synchrometer (Appendix 2) held against the face of the carburetor. These tools merely show airflow passing through each carburetor (which is dependent on the position and wear on the slide). If using these tools, it’s not necessary to do the following steps. You wil want to use a throttle guide (Appendix 1), to show airflow at various throttle settings. Using the flow meter of your choice make sure each carburetor is the same at the various throttle settings. 1. Place the motorcycle on the center stand ensuring the rear wheel is suspended 2. Make sure you have large area to work with (safety issues here) 3. Shift into the highest gear with the engine running 4. Short one spark plug cap to the cylinder (using a nail or something in the fins) 5. Increase the speed to 40-50 km/hr 6. Fix the throttle using the throttle (maybe using a throttle stop screw under the throttle housing). 7. Reconnect other cylinder and using the opposite carburetor determine the speed which should be the same as the first. 8. Adjust the position of this slide to achieve the referenced speed using the locknut at the top of the carburetor.

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apply or add designated greases and lubricants to the specified lubrication points. ÑAfter reassembly, check all parts for proper tightening and operation. ÑWhen two persons work together, pay attention to the mutual working safety. ÑDisconnect the battery negative (-) terminal before operation. ÑWhen using a spanner or other tools, make sure not to damage the motorcycle surface. ÑAfter operation, check all connecting points, fasteners, and lines for proper connection and installation. ÑWhen connecting the battery, the positive (+) terminal must be connected first. ÑAfter connection, apply grease to the battery terminals. ÑTerminal caps shall be installed securely. 1 . GENERAL INFORMATION 1-6 ATV 300/250 ÑIf the fuse is burned out, find the cause and repair it. Replace it with a new one according to the specified capacity. ÑAfter operation, terminal caps shall be installed securely. ÑWhen taking out the connector, the lock on the connector shall be released before operation. ÑHold the connector body when connecting or disconnecting it. ÑDo not pull the connector wire. ÑCheck if any connector terminal is bending, protruding or loose. Confirm Capacity 1 . GENERAL INFORMATION 1-7 ATV 300/250 ÑThe connector shall be inserted completely. ÑIf the double connector has a lock, lock it at the correct position. ÑCheck if there is any loose wire

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Basic Tuning Adjustments 1. The following instructions are for basic fuel tuning. Modes 1,2, & 3 are allowing adjustments to increase and decrease the amount of fuel the engine needs. Modes 4 & 5 are for advanced tuning only. DO NOT change modes 4 & 5 when doing basic tuning! 2. To help understand how these modes work, you can think of them as if you were working with a carburetor. 3. Remember each time you push the MODE button you will be advancing to the next mode. Push the MODE button once and you are now in mode 1, push the MODE button again and you are now in mode 2 and so on. You only need to be concerned with modes 1, 2 & 3 for basic tuning. Modes 4 & 5 are for advanced tuning ONLY. 4. If you need to go back to the settings that were pre programmed when you purchased the controller, just look at the picture in each mode, the colored square represents where the settings were when you purchased the controller. 5. Looking at the controller you will see eight lights with numbers under them, this is what you need to look at when changing settings. The #1 light on the controller represents the leanest setting. TRINITY RACING DOES NOT TAKE REPONSIBLITY FOR DAMAGES THAT MAY OCCUR DURING OPERATION OF YOUR VEHICLE UNDER IMPROPER JET SETTINGS. IT IS THE FINAL RESPONSIBLITY OF THE OWNER/RIDER TO ADJUST JETTING TO SPECIFIC RIDING CONDITIONS AND ELEVATION BEFORE RIDING. WARNING! 1.877.FAS TOYS 2.Remove both seats 6. Re-install engine cover and seats. 6. Mode 1 green light represents idle & cruise adjustment (i.e. pilot jet). To adjust this setting push the MODE button once and then push the plus or minus buttons to adjust fuel as needed. 7. Mode 2 yellow light represents an additional amount of fuel added during acceleration (i.e. needle position). To adjust this setting, push MODE twice and then push the plus or minus buttons to adjust fuel as needed. 12 34 56 7 8 12 34 56 7 8 8. Mode 3 red light represents more fuel being added during full throttle (i.e. main jet). To adjust this setting push the MODE button three times and then push the plus or minus buttons to adjust fuel as needed. 9. If you are confident about your tuning skills and feel you need to adjust other parameters, see Advanced Tuning. 12 34 56 7 8 Advanced Tuning Adjustments 1. Advance tuning has two modes in which to adjust. They are called mode 4 and mode 5. In basic tuning, you are changing the amount of fuel that the engine receives, but with advance tuning, you will be changing when the fuel will be available. In each mode you can adjust how soon the fuel delivery occurs. 2. Mode 4 yellow light and blue light represent when the fuel delivery is available during partial throttle acceleration. To adjust this setting, push the MODE button four times and then push the plus or minus buttons to adjust fuel as needed. Only the yellow light will be changing.

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The 2006 model runs with the same 998 cc liquid-cooled 4-stroke DOHC 4-cylinder 5-valve layout featuring a 77 x 53.6 mm bore and stroke and 12.4:1 compression ratio. Equipped with a 3-axis transmission, fuel injection and 40 degree forward slanted cylinders, this ultra-compact powerplant is one of the most highly respected supersport engines of all time. Yamaha’s engineers have conducted a thorough examination of the R1′s intake and exhaust efficiency, and for 2006 a range of detailed changes in this area have achieved a 3 Hp increase in power at 12,500 rpm without direct air induction. One of the most significant changes is the use of shorter intake valve guides for 2006. Measuring 27.5 mm, these new guides are 5 mm shorter than the 2005 model, and this 15% reduction in length increases engine efficiency by increasing intake air flow, and reducing frictional power losses. To match the new intake valve guides, the 2006 model also features smoother intake ports. Furthermore, the clutch boss has been modified to increase the oil flow to the clutch assembly. other detail changes The design of the compact cam chain tensioner has been revised, and now features a different sealing system for improved durability. The overall length of the main gear axle is increased by 5 mm, and the engine cover is modified accordingly. engine TechnicaL highLighTS n 998 cc liquid-cooled 4-stroke DOHC 4-cylinder 5-valve n 3 hp power increase to 175 Hp @ 12,500 rpm* n 40 degree forward incline cylinder n Fuel injection n Ultra compact 3-axis transmission n 77 x 53.6 mm bore and stroke n 12.4:1 compression ratio n New smoother intake port design n New shorter intake valve guides n Higher intake and exhaust efficiency n Modified cam chain tensioner n Redesigned clutch boss * Without direct air induction
chaSSiS The R1′s Deltabox V chassis has been developed with the benefit of ongoing structural analysis and repeated testing, all the time using input from our highly successful MotoGp race programme. For 2006 the R1′s class-leading aluminium Deltabox V frame remains externally similar to the existing model, but beneath the skin some subtle yet significant changes have taken place

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GENERALEXCLUSIONS from this warranty shall include any failures caused by: a. Competition or racing use. b. Installation of parts or accessories that are not qualitatively equivalent to genuine Yamaha parts. c. Abnormal strain, neglect, or abuse. d. Lack of proper maintenance. e. Accident or collision damage. f. Modification to original parts. g. Damage due to improper transportation. SPECIFIC EXCLUSIONS from this warranty shall include parts replaced due to normal wear or routine maintenance. THE CUSTOMER’S RESPONSIBILITY under this warranty shall be to: 1. Operate and maintain the motorcycle as specified in the appropriate Owner’s Manual. 2. Give notice to an authorized Yamaha motorcycle dealer of any and all apparent defects within ten (10) days after discovery, and make the machine available at that time for inspection and repairs at such dealer’s place of business. You may locate your nearest authorized Yamaha dealer through your local telephone directory. WARRANTY TRANSFER: To transfer any remaining warranty from the original purchaser to any subsequent purchaser, it is imperative that the machine be inspected and registered for warranty by an authorized Yamaha motorcycle dealer. In order for this warranty to remain in effect, this inspection and registration must take place within ten (10) days after transfer. Areasonable dealer imposed fee may be charged for the inspection. In no case will warranty be extended beyond the original period. EMISSIONS CONTROLSYSTEM WARRANTY Yamaha Motor Corporation, U.S.A. also warrants to the ultimate purchaser and each subsequent purchaser of each Yamaha motorcycle covered by this warranty with a displacement of 50cc or greater, that the vehicle is designed, built, and equipped so as to conform at the time of sale with all U.S. emissions standards applicable at the time of manufacture and that it is free from defects in materials and workmanship which would cause it not to meet these standards within the periods listed immediately below. Failures other than those resulting from defects in material or workmanship which arise solely as a result of owner abuse and/or lack of proper maintenance are not covered by this warranty.